CN104533566B - Diesel engine oil pressure control method, device and generating set - Google Patents
Diesel engine oil pressure control method, device and generating set Download PDFInfo
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- CN104533566B CN104533566B CN201410783720.XA CN201410783720A CN104533566B CN 104533566 B CN104533566 B CN 104533566B CN 201410783720 A CN201410783720 A CN 201410783720A CN 104533566 B CN104533566 B CN 104533566B
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- temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Diesel engine oil pressure control method, device and the generating set of the present invention, sets the corresponding relation that lubricating oil system oil pressure relief threshold values changes with oil temperature: as t ＜ TOTime, p=PO；Work as TO≤ t ＜ TCTime, p=PO+k△t；Work as TCDuring≤t, p=PO+kTC；After starting diesel engine, rated speed or its following operating mode can be loaded onto, the real-time oil pressure relief threshold values simultaneously drawn according to described corresponding relation, the engine oil pressure of regulation lubricating oil system.Its device can be temperature-sensing valve and overflow air relief valve connecing, and temperature-sensing valve is initially opening, gradually rising and progressively close off with oil temperature.Simple and compact for structure, with low cost.Initial lubricating oil system pressure after the machine of rising constantly is adjusted with the change of oil temperature, do not result in the damage of the parts such as supercharger, injection pump, the most reliably ensure that lubrication effect simultaneously, eliminate " beating temperature " time, it is notable that heavy oil unit especially saves light oil effect.
Description
Technical field
The present invention relates to a kind of diesel engine oil pressure control method, device and generating set, belong to diesel engine skill
Art field.
Background technology
The lubricating oil system of diesel engine is mainly by main lubricating oil pump, starting lubricating oil pump, oil filter, overflow valve, machine
The parts such as oil heater, pipeline form.By fuel primer pump, machine oil is pumped out from oil sump during the machine of rising, flow into oil spout
Oil sump is returned to after the parts of each needs lubrication such as device, main bearing shell, supercharger and cooling.After the machine of rising completes,
Oil lubricating and cooling all parts is promoted by main lubricating oil pump.During owing to playing machine, oil temperature is relatively low, viscosity big,
Directly be raised to rated speed from idling after starting, machine oil pipeline can produce elevated pressures, easily by supercharger,
The parts damages such as injection pump.Simultaneously as hypertonia, produce alarm for high voltage, shutdown, make the unit cannot
Normal work.Diesel generating set is not in the case of having civil power auxiliary, for avoiding unit to immediately enter after playing machine
Rated speed and make engine oil pressure too high, general way is first idling no-load running, until oil temperature raises
Loading temperature (being commonly called as " beating temperature ") to regulation.In some market, heavy oil generating set power station, customer requirement
Unit is from the beginning of receiving power generation command, it is necessary to completed unit generation in 20 minutes and is fully loaded with grid-connected, complete in 45 minutes
Become unit fuel by light oil to the conversion of heavy oil.But " beating temperature " the mode time of routine is oversize, tend not to full
These GENERATION MARKET of foot are in time and the requirement of light oil consumption indicators.
Summary of the invention
The purpose of the present invention overcomes the deficiency of above-mentioned prior art exactly, it is provided that a kind of diesel engine oil pressure controls
Method, device and generating set, beat temperature without idling after playing machine, can enter higher rotation speed or rated speed work
Make.
The object of the present invention is achieved like this: a kind of diesel engine oil pressure control method, it is characterised in that adopt
Take the following step:
A. the corresponding relation that lubricating oil system oil pressure relief threshold value changes is set with oil temperature: as t ＜ TOTime,
P=PO；Work as TO≤ t ＜ TCTime, p=PO+k△t；Work as TCDuring≤t, p=PO+kTC；Wherein: t-real time temperature, △
T-temperature increment (t-TO), TOThe critical temperature of-low temperature, TCThe critical temperature of-high temperature, p-real-time oil pressure relief threshold
Value, PO-initial oil pressure relief threshold value, k-temperature coefficient；
B. diesel engine is started；
The most as required diesel engine is loaded onto rated speed or its following operating mode；
Detect the oil temperature of diesel engine oil system the most in real time；
E. the real-time oil pressure relief threshold values drawn according to corresponding relation in step A, the oil pressure of regulation lubricating oil system
Power.
A kind of diesel engine oil pressure realizing above-mentioned control method controls device, enters including being connected on diesel engine lubricating oil
Overflow air relief valve between oil pipe line and oil sump, it is characterised in that arrange one with described overflow air relief valve connecing
Temperature-sensing valve, the temperature control signals of this temperature-sensing valve picks up from the beginning of the machine oil in diesel engine oil system, temperature-sensing valve
Begin as opening, gradually rising and progressively close off with oil temperature.
A kind of diesel generating set, it is characterised in that use above-mentioned control method or device.
Technical scheme, after playing machine at diesel engine, the random oil temperature of pressure of initial lubricating oil system
Degree change and be constantly adjusted, can make diesel engine after starting successfully, be directly entered higher rotation speed or specified
Speed conditions, will not, viscosity low because of oil temperature in pipeline big and produce elevated pressures, thus do not result in
The one-tenth of the parts such as supercharger, injection pump damages, and the most reliably ensure that the good lubrication cooling of lubricating oil system simultaneously
Effect.Especially for heavy oil unit, owing to eliminating " beating temperature " time, the effect saving light oil is the most aobvious
Write.By used in parallel with overflow air relief valve for temperature-sensing valve, simple and compact for structure, with low cost.
Accompanying drawing explanation
Fig. 1 is the diesel engine lubricating oil temperature and pressure control method schematic flow sheet of the embodiment of the present invention.
Fig. 2 is that the diesel engine lubricating oil temperature and pressure of the embodiment of the present invention controls principle of device schematic diagram.
Figure is labeled as: 1-overflow air relief valve, 2-temperature-sensing valve.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, real below in conjunction with the present invention
Execute the accompanying drawing in example, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that institute
The embodiment described is a part of embodiment of the present invention rather than whole embodiments.Based on the reality in the present invention
Execute example, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise
Example, broadly falls into the scope of protection of the invention.
Referring to accompanying drawing 1, the diesel engine oil pressure control method of the present embodiment, from the beginning of frame 1, enter frame 2,
Set the corresponding relation that lubricating oil system oil pressure relief threshold value changes with oil temperature: as t ＜ TOTime, p=PO；When
TO≤ t ＜ TCTime, p=PO+k△t；Work as TCDuring≤t, p=PO+kTC；Wherein: t-real time temperature, △ t-temperature
Increment (t-TO), TOThe critical temperature of-low temperature, TCThe critical temperature of-high temperature, p-real-time oil pressure relief threshold value, PO-
Initial oil pressure relief threshold value, k-temperature coefficient.T can be determined according to the performance parameter of concrete diesel engineO、TC、
POValue with k.Enter frame 3, start diesel engine.Enter frame 4, as required diesel engine is loaded onto specified
Rotating speed or its following operating mode.Enter frame 5, detect the oil temperature of diesel engine oil system in real time.Enter frame 6,
The real-time oil pressure relief threshold values drawn according to corresponding relation in frame 2, the engine oil pressure of regulation lubricating oil system.
Referring to Fig. 2, the diesel engine oil pressure of the present embodiment controls device, and overflow air relief valve 1 is connected on diesel engine
Between oil in-line and oil sump, temperature-sensing valve 2 and described overflow air relief valve 1 also connect, the temperature of this temperature-sensing valve 2
Control signal picks up from the machine oil in diesel engine oil system, and temperature-sensing valve 2 is initially opening, and it initially overflows
Flowing pressure threshold value is PO=0.Along with gradually rising of oil temperature, temperature-sensing valve gradually turns down, so that temperature-sensing valve
Oil pressure relief threshold values more and more higher, until closing, thus forward the overflow decompression of lubricating oil system to overflow
On air relief valve 1, the threshold values of overflow air relief valve 1 is PO+kTC=kTC.During oil temperature constantly raises,
If pressure exceeds limit value kTC, then overflow valve 1 is opened, and makes overflow valve help heat control valve shunting, decompression.Can
Ensure that pressure is always without departing from limiting pressure in lubricating oil system pipeline, it is to avoid to the portion such as supercharger, injection pump
The damage of part.
Use the diesel-driven generator of the diesel generating set of above-mentioned control method or device, especially heavy oil combustion
Group, after diesel engine starting success, can make unit generation be fully loaded with grid-connected, and be turned to heavy oil by light oil by fuel
Change.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；
Although being described in detail the present invention with reference to previous embodiment, those of ordinary skill in the art should manage
Solve: the technical scheme described in foregoing embodiments still can be modified by it, or to wherein part skill
Art feature carries out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this
Invent the spirit and scope of each embodiment technical scheme.
Claims (3)
1. a diesel engine oil pressure control method, it is characterised in that take the following step:
A. the corresponding relation that lubricating oil system oil pressure relief threshold values changes is set with oil temperature: as t ＜ TOTime,
P=PO；Work as TO≤ t ＜ TCTime, p=PO+k△t；Work as TCDuring≤t, p=PO+kTC；Wherein: t-real time temperature, △
T-temperature increment (t-TO), TOThe critical temperature of-low temperature, TCThe critical temperature of-high temperature, p-real-time oil pressure relief valve
Value, PO-initial oil pressure relief threshold values, k-temperature coefficient；
B. diesel engine is started；
The most as required diesel engine is loaded onto rated speed or its following operating mode；
Detect the oil temperature of diesel engine oil system the most in real time；
E. the real-time oil pressure relief threshold values drawn according to corresponding relation in step A, the oil pressure of regulation lubricating oil system
Power.
2. the diesel engine oil pressure realizing control method described in claim 1 controls a device, including being connected on
Overflow air relief valve between diesel engine lubricating oil in-line and oil sump, it is characterised in that arrange one and overflow with described
Stream air relief valve the temperature-sensing valve connect, the temperature control signals of this temperature-sensing valve picks up from the machine in diesel engine oil system
Oil, temperature-sensing valve is initially opening, gradually rising and progressively close off with oil temperature.
3. a diesel generating set, it is characterised in that use the control method described in claim 1 or right to want
Seek the control device described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410783720.XA CN104533566B (en) | 2014-12-16 | 2014-12-16 | Diesel engine oil pressure control method, device and generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410783720.XA CN104533566B (en) | 2014-12-16 | 2014-12-16 | Diesel engine oil pressure control method, device and generating set |
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| Publication Number | Publication Date |
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| CN104533566A CN104533566A (en) | 2015-04-22 |
| CN104533566B true CN104533566B (en) | 2016-09-21 |
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| CN111999219B (en) * | 2020-07-13 | 2021-09-14 | 山东大学 | Smoke intensity detection method and system for engineering machinery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08165926A (en) * | 1994-12-14 | 1996-06-25 | Calsonic Corp | Oil cooler device |
| CN200958402Y (en) * | 2006-09-29 | 2007-10-10 | 中国船舶重工集团公司第七一一研究所 | Modular lubricating system of diesel engine |
| CN101196176B (en) * | 2007-12-26 | 2010-09-29 | 二重集团（德阳）重型装备股份有限公司 | Low temperature wind-driven generator speed increasing engine oil lubrication system |
| CN201963392U (en) * | 2011-01-07 | 2011-09-07 | 山东交通学院 | Temperature-controlled emergency stop cooling protection device for turbocharger |
| CN202381670U (en) * | 2011-12-20 | 2012-08-15 | 北京南口轨道交通机械有限责任公司 | Lubricating and cooling system for gear box of wind turbines |
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